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**bleep**. Security Update (like KB5101650) breaking SmartCard Authentication for Office 2024 apps to O365
Looking for some support on this issue. I have Win11 clients that were upgraded from 24H2 to 25H2 last year. They were functioning well until earlier this year when the Cumulative Updates started breaking smartcard authentication on our clients (day after installing/rebooting/cache clearing). This seems to be a known issue but are there any real fixes? Symptom is that after the update is installed, next day (after a reboot or cache cleared) the user starts their Outlook or Teams application, when receiving the prompt that says "you will be prompted for your PIN" nothing follows, you will see the blue dots circling and after 5 or so minutes it times out. Clicking on the "..." shows an informational message error #50058, which says that not enough information was provided. The authentication process is failing... BTW - web authentication works just fine, it's just the local application (Teams, Outlook, etc.) that fail. I found that creating a new account on the system seems to work just fine, but for people that have established accounts and program environments that are setup for them to work, creating a new account is very unappealing to them. I'd like to be able to just get their current accounts working. Creating a new profile, wiping current profile info from registry doesn't seem to work thanks to automagic backups the OS is doing, but even that would still require setting up a new profile and copying over non AAPDAT file structure info... Does Microsoft not have a fix to this "known" issue? I spent a few weeks really digging into this and the best I can find as a work around is to disable the automatic backups of the NTUSER.DAT, blow away current profile info in registry, rename current profile structure, and then have the user login "anew". Again, this still requires a copy of the non-AAPDAT data back into the new structure (at least permissions won't be an issue) but that will not restore all application-based information for that user--that still will have to be re-created, which I think the users will not want to do because it means starting over from scratch.LeroyGAug 18, 2026Tin Contributor178Views0likes2CommentsSole Global Admin locked out - lost MFA device, SSPR phone verification returns error
Hello, I am the sole Global Administrator of a Microsoft 365 Business Standard tenant and I am completely locked out of the account. What happened: - My phone with Microsoft Authenticator was physically destroyed. - I installed Authenticator on a new phone. My personal account restored from cloud backup, but the work account only appears as a "connected account" - it shows no TOTP code and receives no push notifications. Push requests still go to the old device. What I tried while my admin session was still alive: - Entra ID > per-user MFA > "Require selected users to provide contact methods again" - saved successfully. - User > Authentication methods > "Require re-register multifactor authentication" - returned "Delete operation failed. Try this command again or delete them one by one in the user authentication methods blade." - The Authentication methods list for the user was EMPTY, and default sign-in method showed "No default". "Add authentication method" button was greyed out. - "Revoke sessions" - succeeded, but this also terminated my own admin session and signed me out of Outlook and OneDrive. - aka.ms/mfasetup cannot be reached because it requires a fresh MFA challenge. Self-service password reset (passwordreset.microsoftonline.com): - First verification via alternate email succeeds every time (I have full access to that mailbox). - Second verification fails: both "Text my mobile phone" and "Call my office phone" return "Sorry, we ran into a problem contacting you." I tried +370xxxxxxx, 370xxxxxxx and 8xxxxxxxx formats - same error every time. This looks like a service-side failure, not a formatting issue. - Sign-in Helper now also reports "Account blocked due to multiple incorrect password attempts." Error codes seen: 500121 and AADSTS50133. I have tried calling Microsoft support in several countries. The automated system either asks for an internal extension number or the AI assistant disconnects the call before reaching a human. There is no second Global Admin and no recovery codes. I can provide the tenant ID, user unique identifier, subscription order number and proof of access to the billing email address privately. Requesting escalation to the Data Protection team for admin account recovery. Any guidance on how to reach a human agent would be greatly appreciated. Thank you.RadanarasMBAug 18, 2026Copper Contributor112Views0likes2CommentsMicrosoft Teams and Authenticator lockdown
I’m having a very frustrating issue with Microsoft Teams. I am able to log in to teams using my normal personal email and account ONLY ON THE WEB BROWSER. From the web browser, I am not able to access the business channel that I am in. When attempting to log in on the downloaded mobile Teams App, I am sent directly to Microsoft Authenticator, which after waiting several hours, waiting even a full day, is still displaying a message about repeated verification attempt and to wait and try again later. I have accessed Microsoft support chat and they had no help for me. I need the authenticator lockdown to refresh and it will not.AustinNorthcuttAug 10, 2026Copper Contributor92Views0likes1CommentStuck in an authenticator loop
I have a 365 Business account. Haven't logged in for a while due to reasons, i was just starting up as a sole trader. Anyway decided now is the time to resurrect it and get up and running, except Authenticator doesn't work because I changed my phone, and my back up email is out of date, and no longer exists. I have tried the support web chat which wants to send a code to authenticator or my back up email. Just called the help line that referred me to the web chat which doesn't work, I couldn't get past the bot. So I am stuck. Any recovery options does not recognise my log in details, i think this is because its been a while since I logged in (I still pay but ....) but I can't resurrect it because I don't have a way of getting a code due to authenticator/back up email as cited above. I am really at a loss as to what to do. I don't want to abandon it and start again as there are documents in my one drive that I need. Can anyone help please. (I think all that needs to happen is an update to my back up email and then I can get going). I am the sole administrator on my business account.RoisMJMBAug 10, 2026Copper Contributor128Views1like3CommentsNot able to do an account recovory when 2FA is enabled and Passkeey is half set up
I am not able to log into my personal account. I have tried account recovery, but I have 2FA set up so I go a message saying this is ignored. I have rest the password using 2FA but when I try to login the message is that I can not use password to login. I beleive my partern loged me out of the account and tried to log in to her account but instead started Passkey set up. I have needed to login with my company account even to raise this post. Any help would be great.Jonathan-FranklinJul 30, 2026Copper Contributor72Views0likes1CommentAuthenticator não funciona
Tenho um e-mail corporativo (sou o adm único, nao tem ti) que faço login na conta do powerbi, contudo, meu celular com o authenticator foi perdido e já nao tenho mais acesso, por este motivo, nao consigo mais logar na conta pq ele sempre direciona para o authenticador que nao tenho mais acesso e não abre a possibilidade de receber o codigo por outro meio, (sms ou email). ja tentei vários recursos (chat, telefone do suporte) para recuperar a conta e nao consigo. Todas as opções direcionam para o autenticador. solicito a microsoft que dê uma solução, resetando o autenticador anterior para que eu possa acessar a conta e incluir métodos alternativos de desbloqueio, ou sugira outra solução.75Views0likes1CommentStrange redirect when signing in - phishing?
I just restarted my Business Standard 365 license today and this afternoon got an email from email address removed for privacy reasons with the following content: But when I clicked on the 'Verify payment information' button I am redirected to a page with the following URL: https://admin.cloud.microsoft/Error/UnAuth?errorCode=100014 looking like this: This looks highly suspicious (Times New Roman font, URL with no top-level extension such as .com, unusual graphics). Is this legitimate or a phishing attempt? Now, when I try to login to admin.microsoft.com to check my account the same suspicious "Sign out and login with a different account" page pops up repeatedly.220Views0likes6CommentsTrapped in an Authenticator Loop
Dear Community, please help! I am trapped in an Authenticator Loop. I've got a microsoft workplace account, but if I want to log in, I have to type in a code from the microsoft authenticator app. I downloaded the app, but in order to use it, I have to log into my account and in order to do so, I also have to type in a code from the authenticator app, which I don't get, because to get the code I would have to log into the authenticator app, what I would need a code for... No matter which link I click, I can't open anything before I enter the code, which I can't get. I am using teams on mac, either on a firefox browser or on the desktop app and the authenticator on an Iphone. Please don't just tell me "don't use teams on a mac", this wasn't my choice. Unfortunately, my emplyer's IT support also is chronically unavailable. So is here anyone who could help me? I've already gone through the usual deleting the app, using another browser etc. options. Best LukasLukasMaerzJul 21, 2026Copper Contributor448Views0likes3CommentsVaihdoit uuteen puhelimeen. Authenticator ongelma
Vaihdoit uuteen puhelimeen. Microsoft Authenticator ei ole enää saatavilla vanhalla laitteellasi. Et voi kirjautua Microsoft 365 -työtilillesi, koska MFA-vahvistus vaaditaan. Sinulla ei ole pääsyä mihinkään vaihtoehtoiseen todennusmenetelmään. Tarvitset apua suomeksi, jos mahdollista.PäiviJul 14, 2026Copper Contributor88Views0likes1Comment
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